The E3 Lean-Burn’s core functionality is an air/fuel ratio trim control using either exhaust oxygen closed loop or generator power feedback. Additional functions are available by adding optional hardware (see tab below). The base system hardware is an air/fuel ratio control E3 controller, trim valve & UEGO or kW feedback sensor. The fuel metering subsystem consists of a carburetor combined with a fuel trim valve, each appropriately sized for the application.

The system can control speed/load, air/fuel ratio and spark timing/duration, at any engine load and speed condition. It can be applied to inline or multibank engines in a wide range of power outputs, both naturally aspirated and turbocharged. Calibration can be fuel specific and the control is easily programmable through Woodward Toolkit.

The E3 Lean-Burn system accommodates a wide range of gas compositions, including LPG, pipeline natural gas, landfill gas, and other low-heating value gases. Anticipated changes in gas quality during normal operation of the engine are compensated by the control by means of kW feedback or UEGO closed loop.

For higher BMEP applications and those requiring Class 1, Division 2 certified ignition, an external IC-920/922 ignition system is available, with standard or shielded capacitive discharge coils, as required. The IC-920/922 ignition controller is integrated with the E3 controller, over a J1939 CAN communication network.

Integrated power management is available using the easYgen™ 3000 series power management controller, which communicates with the E3 controller over a second J1939 CAN communication network.

E3 emission control systems can be retrofitted to your existing engines by a Woodward Recognized Engine Retrofit (RER) partner. Find information on an RER in your area from the listing below.

NORTH AMERICANRecognized Retrofit Partners

Provinces of New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, and Quebec, and territories of Northwest Territories, Nunavut, and Yukon--select an RER closest to you.